The British crime drama Professor T returns for its fourth season on August 24, 2025, featuring the eccentric criminology professor, Jasper Tempest.
Following the shocking events of Season 3, Jasper and Detective Dan Winters grapple with grief and trauma, leading to a more introspective and emotionally charged narrative.
Season 4 promises to bring out the show’s signature blend of suspense, drama, and dark humor, with standout performances from Ben Miller and Frances de la Tour.
You can watch Professor T in Ireland through ITVX and PBS. However, both services are geo-restricted to the UK. You will need a VPN to bypass its geo-restrictions.
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How to Watch Professor T in Ireland for Free
You can stream all three seasons of Professor T and the upcoming Season 4 for free on ITVX. All you need to do is sign up.
Follow these steps to watch Professor T in Ireland for free.
Step 1: Download and install the Surfshark VPN App on your device and connect to the UK server.
Step 2: Visit the ITVX.
Step 3: Enter your Email to “Sign In” or “Register.”
Step 4: Enter your Password.
Step 5: Set up your Profile.
Step 6: Enter the Postal Code of the UK.
Step 7: Choose Plan.
Step 8: Click search and search for Professor T.
Step 9: You can stream all the seasons of Professor T, with the 4th season coming soon.
Best Way to Watch Professor T in Canada
Here are some of the best ways to watch Professor T in Canada, and with these services, you’ll also get access to a huge library of movies and TV shows.
1. ITVX
ITVX is a free, ad-supported streaming platform from the UK that allows you to watch Professor T Season 4, along with many other exclusive shows.
The platform also offers exclusive shows like Passenger, Real Housewives, Emmerdale, ITV channel livestreams, FAST channels, and a wide range of licensed programming.
Since ITVX is geo-restricted in Ireland, you’ll need a VPN to access it securely. We recommend Surfshark for smooth streaming.
2. PBS
PBS (Public Broadcasting Service) is a non-commercial, free-to-air network in the United States and one of the platforms streaming Professor T.
Season 4 of Professor T debuted on PBS Passport on August 10, 2025, with early access to all six episodes. The season will be available on PBS stations, the PBS app, and the PBS Masterpiece Prime Video Channel, starting August 24, 2025.
Since PBS is only accessible in the U.S., viewers in Ireland will need a VPN like Surfshark to bypass geo-restrictions and securely watch the show.
Read More: Watch PBS in Ireland
First look at Professor T Season 4
Here’s an early preview of Professor T Season 4, giving a sneak peek into the mysteries and drama ahead.
Professor T Season 4 – Main Cast
The upcoming season features a strong mix of returning favourites and new faces, keeping the story fresh and engaging. Here’s the full cast list:
- Ben Miller as Professor T
- Lizzie Back as Diana Tyson
- Sarah Woodward as Ingrid Snares
- Emma Naomi as Lisa Donckers
- Barney White as Dan Winters
- Andy Gathergood as Paul Rabbit
- Martin Swabey as Martin Bentley
- Juliet Aubrey as Christina Brand
- Maïmouna Badjie as Saskia Dawson
- Frances de la Tour as Adelaide Tempest
- Douglas Reith as The Dean
- Madeleine Fletcher as Jasmine Banks
- Line Pillet as Milly Standish
- Rupert Turnbull as Young Jasper Tempest
- Kathlyn Wuyts as Student
- Deborah Zwart as Henry Watson’s Wife
- Daniel Cane as Dennis Banks
Plot – Professor T
Professor Jasper Tempest is a brilliant criminologist at Cambridge, respected for his intellect but disliked for his blunt honesty. His directness often offends students, and he frequently clashes with the dean, but his talent keeps him at the university.
Living with his overprotective mother, Jasper is unsociable and difficult, yet his brilliance compensates for his lack of charm. His life is defined by routines, and despite his eccentricities, his knowledge is highly valued.
Jasper’s unique ability to solve complex crimes using his psychological insights places him at odds with law enforcement. Over time, his journey of self-discovery and personal growth unfolds through his interactions with others.
How to Watch Professor T in Ireland on a Mobile
You can stream Professor T in Canada on your mobile using the ITVX app. Simply download the app, sign in, and enjoy Professor T along with hundreds of other shows and movies.
Follow these steps to watch Professor T in Ireland for free on a mobile device.
Step 1: Download and install the Surfshark VPN App on your mobile and connect to the UK Server.
Step 2: Download and install the ITVX app from the Play Store or App Store.
Step 3: Open the app and click my ITVX at the bottom right corner.
Step 4: Click Sign In.
Step 5: Enter your Email to continue.
Step 6: Enter your Password.
Step 7: Search for Professor T.
Step 8: Click on watch now to enjoy.
Other TV Shows to Watch in Ireland
If you’re looking for ways to pass your free time, then we’ve some excellent TV show recommendations for you to watch in Ireland:
This iconic British sci-fi series follows the adventures of the Doctor, a time-traveling alien who explores the universe in the TARDIS, battling foes and saving civilizations.
Watch Solar Opposites in Ireland
This animated comedy features a quirky alien family trying to adapt to life in middle America, constantly debating whether Earth is amazing or a total disaster.
Based on Isaac Asimov’s classic novels, Foundation is a visually stunning sci-fi series about a group of rebels trying to save humanity during the fall of a galactic empire.
Watch The Summer I Turned Pretty in Ireland
A heartfelt coming-of-age drama that follows a teenage girl navigating love, friendship, and personal growth during one unforgettable summer.
FAQ — Professor T
1. How many seasons of Professor T are there?
The British series has four seasons so far, with a fifth confirmed for the future.
2. When did Professor T first premiere, and where is it set?
It debuted on 18 July 2021 on ITV and is set in Cambridge, following the brilliant criminologist Jasper Tempest.
3. How can I stream Professor T in the US?
In the US, the series is available on PBS, either for free or via the PBS app across many devices.
4. What makes Jasper Tempest unique?
Jasper Tempest is a genius criminologist with OCD and autistic traits, making him unpredictable yet brilliant at solving complex crimes.
Conclusion
Professor T Season 4 premieres on August 24, 2025, continuing Jasper Tempest’s story with gripping mysteries and deeper character arcs.
In Ireland, you can stream Professor T on ITVX, which offers all previous seasons and will add Season 4 after release. Since ITVX is geo-blocked, you’ll need a reliable VPN like Surfshark to access it.
